Originally Posted by
Dennis
The patch of metal should be thin and burnished down at the edges to conform to the shape of the base.
Make several locating marks with a waterproof pen, so that it fits well when soldered.
It will still be a raised patch, but there is no easy way to deal with that.
Line the inside of the patch with melted solder, apply to the figure and reheat to attach (sweat soldering).
Solder to use: extra easy silver solder with borax, or lead free soft solder with soldering fluid.
Yes support the figure as you suggest, but also gently tie on the patch with cross pieces of binding wire, to keep it from moving.
Slightly bevel the lower edge of the patch to discourage solder from creeping out.
No you should not use a needle flame but a large soft flame applied all over the area, until you just see a silvery flow of solder at the edges.
Leave it to air cool, because immersing it will possibly crack the metal and fill the object with liquid.
Hopefully you can re-polish with metal polish. Dennis.
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